Type-writer attachment.



4 O 9 1 6 2 Y L U J D E T N E T J. A. G..ARNOLD. TYPE WRITER ATTACHMENT.

APPLICATION TILED 00128. 1903.

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No. 765,804. PATENTED JULY 26, 1904. J. A. G. ARNOLD.

TYPE WRITER ATTACHMENT. APPLICATION nun 00312.28. 1903.

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UNITED STATES Patented J'uly 26, 1904.

PATENT OFFICE.

JAMES A. GARFIELD ARNOLD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO CHARLES W. MARSH-ALL, OF PHILA- DELPHIA, PENNSYLVANIA.

TYPE-WRITER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 765,804, dated July 26, 1904.

Application filed October 28, 1903.

To all whom it may concern:

Be it known that I, J AMES A. GARFIELD AR- NOLD, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Type-Writer Attachments, of which the following is a specification.

My invention relates to new and useful improvements in type-writers, and more especially to ribbon-carrying attachments; and its object is to provide an attachment which can be readily placed in position upon the carriage of a type-writer and which serves to support a detachable auxiliary ribbon which can be quickly removed or placed in position, said ribbon being preferably of a color different from the main ribbon upon the machine.

A further object is to provide an attachment by means of which the ribbon connected thereto can be readily adjusted into proper position between the type and the paper upon the platen.

IVith the above and other objects in view the invention consists in providing detachable guide-plates which are adapted to be mounted upon the end of plates of the carriage of a typewriter, and these guides support slides having eyes extending inwardly therefrom. To these eyes are detachably connected the ends of an auxiliary ribbon which is provided with a tensioning device whereby the same is held normally out of contact with the platen or paper mounted thereon.

The invention also consists in the novel construction and arrangementof the several parts, which will be more fully hereinafter described and claimed, and illustrated in the accompanying drawings, in whicl1- View of the slide and its guide detached. Fig. 4 is a side elevation of the guide with the slide therein. Fig. 5 is a side elevation of a Serial No. 178,896. (No model.)

portion of the carriage and showing the guide fastened thereto. Fig. 6 is a longitudinal section through the guide and slide. Fig. 7 is an enlarged transverse section through a portion of the carriage and showing the guides and slides in section, a portion of the crossbar of the carriage being shown in elevation. Fig. 8 is a perspective view of a modified form of guide adapted for use in connection with other forms of type-writer carriages.

Referring to the figures by numerals of reference, 1 1 are the side plates of the carriage of a type-writer, and arranged along the inner face of each of these side plates is a guide formed, preferably, of a strip of metal 2, having a longitudinally-extending dovetail groove 3 in its upper face. Ears 4 are riveted or otherwise secured to the bottom of the strip 2 and are adapted to straddle a rectangular bar 5, which is located between the plates 1 and is secured thereto preferably by means of screws 6, which extend through the plates and into the ends of the bar 5. An L-shaped retaining-plate 7 is riveted upon each strip 2 and projects from the outer face thereof and is adapted to extend over the adjacent plate 1. This retaining-plate 7 has an aperture8 therein for the reception of the screw 6, hereinbefore referred to, and it will therefore be seen that by constructing the parts in the manner herein shown one screw or similar fastening device can be employed for securing the bar 5 and the guide-strip 2 to each plate 1. Mounted within each groove 3 is a slide 9, havinga handle 10 projecting upwardly therefrom and a laterally-extending eye 11, which is mounted within a recess 12, extending longitudinally within the upper edge of one wall of the groove 3, said. eye being limited in its movement by the end walls of the recess 12. This eye is adapted to be engaged by a hook 13. I Two of these hooks are provided. To one of them is fastened one end of a ribbon 14, while the other end of said ribbon is connected, by means of a link 15, with an elastic band 16, which is fastened in any suitable manner to the other book. It will therefore be seen that when the two hooks 13 are in engagement with the ward thereby; but as the ribbon 14: is nearer the platen than the other ribbon of the typewriter it will be understood that the color of the letters written will be the same as that of the ribbon 1 L As the ribbon moves with the carriage, it will be understood that the surface thereof will be worn evenly. \Vhen it is not desired to use the auxiliary ribbon, the same can be retracted from position. The same can be readily detached by disengaging the hooks 13 from the eyes 11, and if it is desired to remove the entire attachment it is merely necessary to detach the screws 6 and lift the guide-strips 2 from engagement with the cross-bar 5 and the plates 1.

It will be understood that any desired form of guide-strip may be employed to adapt the attachment for use in connection with various forms of type-writer carriages. In Fig. 8 l have shown a modified form of guide-strip which is angular in elevation and has a dovetail groove 17 in the bottom thereof for the reception of a slide 18. Various other forms of guide-strips may be employed without departing from the spirit or sacrilicing the ad.- vantages of the invention.

Having thus fully described the invention, what is claimed as new is 1. An attachment for type-writer carriages comprising guide strips, carriage engaging ears extending therefrom, slides adjustably mounted within the guide-strips, and a ribbon detachably connected at its ends to the slides.

2. An attachment for type-writer carriages comprising grooved guide-strips, means for securing the same to a type-writer carriage, slides adjustably mounted within the guidestrips, eyes extending laterally therefrom and, engaging the guide-strips, and a ribbon connected to the eyes.

3. An attachment for type-writers, comprising guide-strips, carriage-engaging ears extending therefrom, slides adj ustably mounted within the guide-strips, a ribbon detachably connected at its ends to the slides, and a tension device for the ribbon.

a. An attachment for type-writer carriages, comprising guide strips, slides adjustably mounted therein, hooks detachably connected to the slides, a ribbon secured to one of the hooks, and a tension device interposed between and secured to the ribbon and the other hook.

5. An attachment for type-writer carriages, comprising grooved guide-strips, means for securing the same to a type-writer carriage, slides adjustably mounted within the guidestrips, eyes extending laterally therefrom and engaging the guide-strips, hooks detachably connected to the'eyes, a ribbon secured to one of the hooks, and a tension device interposed between and secured to the ribbon and the other hook.

6. An attachment for type-writer carriages, comprising oppositely-arranged guide-strips having dovetail grooves therein, carriage-engaging means extending from the strips, slides adjustably mounted within the grooves, handles upon the slides, eyes extending laterally from the slides, and engaging the guide-strips, hooks detachably connected to the eyes, a ribbon secured to one of the hooks, and a tension device interposed between and secured to the ribbon and the other hook.

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES A. GARFIELD ARNOLD.

\Vitnesses:

\V. HAMILTON Rose, G-Eo. C. Sco'r'r. 

